| Fe3O4/PNIPAM纳米复合微球的制备 |
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| 引用本文： | 温裕乾,蔡力锋,林志勇,钱浩,韩惠琴,林现水. Fe3O4/PNIPAM纳米复合微球的制备[J]. 材料研究学报, 2012, 0(1): 26-30 |
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| 作者姓名： | 温裕乾 蔡力锋 林志勇 钱浩 韩惠琴 林现水 |
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| 作者单位： | 华侨大学材料科学与工程学院;莆田学院环境与生命科学系 |
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| 基金项目： | 福建省自然科学基金2009J05131;莆田市科技计划2009G25资助项目~~ |
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| 摘 要： | 用化学共沉淀法制备Fe3O4磁性纳米粒子,以N-异丙基丙烯酰胺（NIPAM）、N,N′-亚甲基双丙烯酰胺（MBA）和偶氮二异丁腈（AIBN）为原料,用种子乳液聚合法制备了具有温敏性的Fe3O4/PNIPAM纳米复合微球。用红外光谱仪（FTIR）、透射电镜（TEM）、热重分析仪（TGA）及Zeta粒度仪（DTS）等手段对复合微球进行了表征,研究了单体（NIPAM）、交联剂（MBA）、乳化剂（SDBS）用量对复合微球粒径及磁含量的影响。结果表明:Fe3O4/PNIPAM纳米复合微球呈球形,具有温敏性,反应条件对复合微球的结构和形貌有较为显著的影响,其粒径和磁含量随着单体浓度的减少、交联剂和乳化剂用量的增加而变小。
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| 关 键 词： | 复合材料 聚N-异丙基丙烯酰胺 纳米复合微球 粒径 磁含量 |
Preparation of Fe3O4/PNIPAM Nano-scale Composite-microspheres |
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| WEN Yuqian,CAI Lifeng, LIN Zhiyong, QIAN Hao,HAN Huiqin,LIN Xianshui. Preparation of Fe3O4/PNIPAM Nano-scale Composite-microspheres[J]. Chinese Journal of Materials Research, 2012, 0(1): 26-30 |
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| Authors: | WEN Yuqian CAI Lifeng LIN Zhiyong QIAN Hao HAN Huiqin LIN Xianshui |
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| Affiliation: | 1.College of Materials Science and Engineering,Huaqiao University,Xiamen 361021 2.Department of Environment and Life Science,Putian University,Putian 351100 |
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| Abstract: | Magnetic Fe3O4 nanoparticles were prepared by co-precipitation,and further encapsulated with poly（N-isopropylacrylamide） via seeded emulsion polymerization to form Fe3O4/PNIPAM nano-scale composite-microspheres.The microspheres were characterized by FTIR,TEM,TGA and DTS.Herewith the effects of the concentration of monomer（NIPAM）,cross-linker（MBA） and emulsifier（SDBS） on the diameter,magnetic Fe3O4 content of the microspheres were investigated.The reaction parameters show notable influence on the structure and morphology of the microspheres,and as a result,the diameter and magnetite content of the microspheres decreased with the decrease of monomer concentration and the increase of cross-linker concentration and emulsifier concentration. |
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| Keywords: | composites poly(N-isopropylacrylamide) nano-scale composite-microspheres diameter magnetite content |
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